Nondoped electrophosphorescent organic light-emitting diodes based on platinum complexes

Yang Gang; Zhang Di; Wang Jun; Jiang Quan; Zhong Jian; Yu Jun-Sheng; Zhu Feng-Zhi; Luo Kai-Jun; Xie Yun; Xu Ling-Ling

doi:10.1088/0256-307X/26/7/077804

Nondoped electrophosphorescent organic light-emitting diodes based on platinum complexes

Yang Gang^*
, Zhang Di
, Wang Jun
, Jiang Quan
, Zhong Jian
, Yu Jun-Sheng
, Zhu Feng-Zhi
, Luo Kai-Jun
, Xie Yun
, Xu Ling-Ling

^*Corresponding author for this work

University of Electronic Science and Technology of China
Sichuan Normal University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

An undoped electrophosphorescent organic light-emitting diode is fabricated using a pure platinum(II) (2-phenylpyridinato-N, C²) (3-benzoyl-camphor) [(ppy)pt(bcam)] phosphorescent layer acting as the emitting layer. A maximum power efficiency η_p of 6.62 lm/W and current efficiency of 14.78 cd/A at 745cd/m² are obtained from the device. The roll-off percentage of η_p of the pure phosphorescent phosphor layer device is reduced to 5% at a current density of 20 mA/cm², which is about 11% for conventional phosphorescent devices. The low roll-off efficiency is attributed to the phosphorescent material, which has the molecular structure of a strong steric hindrance effect.

Original language	English
Article number	077804
Journal	Chinese Physics Letters
Volume	26
Issue number	7
DOIs	https://doi.org/10.1088/0256-307X/26/7/077804
State	Published - 2009
Externally published	Yes

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title = "Nondoped electrophosphorescent organic light-emitting diodes based on platinum complexes",

abstract = "An undoped electrophosphorescent organic light-emitting diode is fabricated using a pure platinum(II) (2-phenylpyridinato-N, C2) (3-benzoyl-camphor) [(ppy)pt(bcam)] phosphorescent layer acting as the emitting layer. A maximum power efficiency ηp of 6.62 lm/W and current efficiency of 14.78 cd/A at 745cd/m2 are obtained from the device. The roll-off percentage of ηp of the pure phosphorescent phosphor layer device is reduced to 5\% at a current density of 20 mA/cm2, which is about 11\% for conventional phosphorescent devices. The low roll-off efficiency is attributed to the phosphorescent material, which has the molecular structure of a strong steric hindrance effect.",

author = "Yang Gang and Zhang Di and Wang Jun and Jiang Quan and Zhong Jian and Yu Jun-Sheng and Zhu Feng-Zhi and Luo Kai-Jun and Xie Yun and Xu Ling-Ling",

year = "2009",

doi = "10.1088/0256-307X/26/7/077804",

language = "英语",

volume = "26",

journal = "Chinese Physics Letters",

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TY - JOUR

T1 - Nondoped electrophosphorescent organic light-emitting diodes based on platinum complexes

AU - Gang, Yang

AU - Di, Zhang

AU - Jun, Wang

AU - Quan, Jiang

AU - Jian, Zhong

AU - Jun-Sheng, Yu

AU - Feng-Zhi, Zhu

AU - Kai-Jun, Luo

AU - Yun, Xie

AU - Ling-Ling, Xu

PY - 2009

Y1 - 2009

N2 - An undoped electrophosphorescent organic light-emitting diode is fabricated using a pure platinum(II) (2-phenylpyridinato-N, C2) (3-benzoyl-camphor) [(ppy)pt(bcam)] phosphorescent layer acting as the emitting layer. A maximum power efficiency ηp of 6.62 lm/W and current efficiency of 14.78 cd/A at 745cd/m2 are obtained from the device. The roll-off percentage of ηp of the pure phosphorescent phosphor layer device is reduced to 5% at a current density of 20 mA/cm2, which is about 11% for conventional phosphorescent devices. The low roll-off efficiency is attributed to the phosphorescent material, which has the molecular structure of a strong steric hindrance effect.

AB - An undoped electrophosphorescent organic light-emitting diode is fabricated using a pure platinum(II) (2-phenylpyridinato-N, C2) (3-benzoyl-camphor) [(ppy)pt(bcam)] phosphorescent layer acting as the emitting layer. A maximum power efficiency ηp of 6.62 lm/W and current efficiency of 14.78 cd/A at 745cd/m2 are obtained from the device. The roll-off percentage of ηp of the pure phosphorescent phosphor layer device is reduced to 5% at a current density of 20 mA/cm2, which is about 11% for conventional phosphorescent devices. The low roll-off efficiency is attributed to the phosphorescent material, which has the molecular structure of a strong steric hindrance effect.

UR - https://www.scopus.com/pages/publications/68449089768

U2 - 10.1088/0256-307X/26/7/077804

DO - 10.1088/0256-307X/26/7/077804

M3 - 文章

AN - SCOPUS:68449089768

SN - 0256-307X

VL - 26

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 7

M1 - 077804

ER -

Nondoped electrophosphorescent organic light-emitting diodes based on platinum complexes

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